124 



paragraph which begins with the words "my duties required me to 

 return to Chicago," &c., insert the following, viz: 



From the above determination of the position of our observing sta- 

 tion, and measurements therefrom of the azimuths and distances to 

 other points as laid down on a "Map of the Borough of Erie, with 

 the water lots and harbour, made by order of the Burgess and Town 

 Council of tiie Borough of Erie, in 1837, under the supervision of 

 T. S. Brown, Civil Engineer," we obtain the latitudes and longitudes 

 of said positions within the City and harbour of Erie, as follows, viz: 



XXIII. CLEVELAND, OHIO. 



In lieu of the last page under this head, substitute the following: 

 According to the above, we give as the approximate positions of 

 other points in Cleveland, the following, viz : 



